[EN] GRAFTABLE BIOCIDAL LINKERS AND POLYMERS AND USES THEREOF<br/>[FR] LIEURS ET POLYMÈRES BIOCIDES POUVANT ÊTRE GREFFÉS ET LEURS UTILISATIONS
申请人:DEBOGY MOLECULAR INC
公开号:WO2021248098A1
公开(公告)日:2021-12-09
Ready-to-graft polymers and compounds, surfaces grafted to same, and methods of making and using the same for controlling the growth of at least one bacteria, fungi, protozoa, or virus are disclosed.
Cephalosporin derivatives, the process for preparing the same, and antimicrobial composition containing the derivatives
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:EP0435333A2
公开(公告)日:1991-07-03
There is provided a cephalosporin derivative represented by the general formula (1):
wherein R101, R102, R103 and Y101 are as difined; the general formula (2):
wherein R201, R202, and R203 are as difined above; the general formula (3):
wherein R301, R302, Y301, Y302 and A301 are as difined; or pharmaceutically acceptable salt thereof. The compound is useful as an active ingredient of antimicrobial agent.
Synthesis and pharmacological evaluation of sulfonium analogs of dopamine: nonclassical dopamine agonists
作者:Karen Anderson、Alice Kuruvilla、Norman Uretsky、Duane D. Miller
DOI:10.1021/jm00138a008
日期:1981.6
In order to test whether the nitrogen/ammonium moiety in the dopamine molecule is required for dopaminergic activity, we have synthesized two sulfonium analogues of dopamine and tested them for biological activity in an in vivo and in an in vitro system. These analogues have provided a means of investigating (1) the ability of the sulfonium function to serve as a bioisostere for the dopamine amino group and (2) whether charged molecules have the ability to bind to dopamine receptors. Both sulfonium analogues, 1 and 2, as well as dopamine, when injected directly into the striatum of rats, previously lesioned unilaterally with 6-hydroxydopamine (6-OHDA), produced circling behavior. The potency of the sulfonium analogues was approximately one-tenth that of dopamine. The effects of all three compounds on circling were inhibited by the dopamine antagonist haloperidol. In addition, both sulfonium analogues inhibited the high affinity binding of radiolabeled dopamine to a crude membrane fraction prepared from the striatum. This study suggests that the nitrogen atom found in th dopamine molecule is not essential for dopaminergic activity, since the nitrogen can be replaced by a sulfonium functional group for this activity.
KOSSMEHL, G.;FROHBERG, H. -CH., CHEM. BER., 1986, 119, N 1, 50-64